Method for preparing high voltage-resisting chip type ceramic capacitor

A technology of ceramic capacitors and voltage resistance, which is applied in the direction of fixed capacitor electrodes, parts of fixed capacitors, and dielectrics of fixed capacitors, etc., which can solve problems such as unfavorable production and development of enterprises, high production costs, and outstanding daily changes.

Active Publication Date: 2013-03-27
BEIJING YUANLIU HONGYUAN ELECTRONICS TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] However, there are big deficiencies in high-firing or medium-firing ceramic capacitor technology, which are mainly manifested in: the use of higher palladium metal content, the shortcomings of high production costs are becoming more and more prominent, whic...

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  • Method for preparing high voltage-resisting chip type ceramic capacitor
  • Method for preparing high voltage-resisting chip type ceramic capacitor
  • Method for preparing high voltage-resisting chip type ceramic capacitor

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Embodiment Construction

[0020] The main purpose of the present invention is to prepare a high-voltage-resistant chip ceramic capacitor with high frequency, high withstand voltage and low cost through the selection and test of ceramic powder material, particle size and formula during the preparation process of porcelain slurry. The following examples further illustrate the content of the present invention. The content mentioned in the examples is not a limitation of the present invention. The materials and process parameters in the preparation method can be appropriately changed without substantial influence on the results.

[0021] This scheme provides a preparation method of high withstand voltage chip ceramic capacitors, including porcelain slurry dispersion, casting ceramic diaphragm, printing internal electrodes, interlaced lamination, uniform pressure, cutting, plastic discharge, sintering, chamfering, coating end In the silver firing process, the solvent of the porcelain paste is toluene and eth...

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Abstract

The invention provides a method for preparing a high voltage-resisting chip type ceramic capacitor and relates to the technical field of electronic information materials and elements. The method comprises the procedures of dispersing of ceramic slurry, curtain coating of ceramic membranes, printing of inner electrode, staggered lamination, uniform pressing, cutting, plastic removal, sintering, chamfering, end coating and silver electrode firing, wherein a solvent for the ceramic slurry adopts methylbenzene and ethanol, during printing of inner electrode, the inner electrode is made of a silver palladium alloy which is sintered at a low temperature, during end coating, the end electrode is made of silver (Ag), particularly, during dispersing of ceramic slurry, ceramic powder adopts Ba-Ti-Nd based ceramic powder, particle sizes of the Ba-Ti-Nd based ceramic powder are within a range of 0.22-0.95mu m of spherical or approximately spherical bodies, and the solvent for the ceramic slurry adopts a mixture of the methylbenzene and the ethanol in a proportion of (1-2.5):1. By the aid of the method for preparing the high voltage-resisting chip type ceramic capacitor, the high-frequency high voltage-resisting chip type ceramic capacitor can be manufactured effectively, and simultaneously, the manufacturing cost can be reduced effectively.

Description

technical field [0001] The invention relates to the technical field of electronic information materials and components, in particular to a preparation method of a high withstand voltage chip ceramic capacitor. Background technique [0002] As a new type of electronic component, multilayer chip ceramic capacitor (MLCC) is widely used in surface mount and plug-in installation. The main application industries are electrical appliances, automobiles, computers and other industries and consumer industries. With the rapid development of electronic technology worldwide, the application of mounting technology is also advancing by leaps and bounds, and the demand for chip ceramic capacitors continues to rise. At present, some domestic manufacturers of high-voltage multilayer ceramic capacitors mostly use high-firing or medium-firing processes in the production of high-frequency ceramic capacitors, and use high-palladium-content paste as the internal electrode, which has relatively hig...

Claims

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Application Information

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IPC IPC(8): H01G4/008H01G4/12
Inventor 赵广勇陈仁政黄萍姗刘佳翔
Owner BEIJING YUANLIU HONGYUAN ELECTRONICS TECH
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